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Preparation method of low-temperature-resistant and scratch-resistant automobile zip-fastener sheath special material

A scratch-resistant and low-temperature-resistant technology, which is applied in the field of special plastics for automobile zipper sheaths and its preparation, can solve the problems of poor low-temperature resistance and scratch resistance, easy to be scratched, low-temperature notched impact strength, etc., and achieve excellent physical properties Effect

Inactive Publication Date: 2015-04-29
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the plastic materials used in automobiles, especially because of its low density, high cost performance, and excellent heat resistance, rigidity, chemical corrosion resistance, and easy processing and recycling, polypropylene has become the largest amount of plastics used in automobiles. , the fastest-growing variety, is more popular in the application of plastic materials for automotive interior parts. However, due to the poor low temperature resistance and scratch resistance of polypropylene materials, it is easy to be scratched under the action of external force. Injured and low-temperature notched impact strength is low, which is limited to some extent in the application of automotive interior parts with high appearance requirements in winter

Method used

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Examples

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the examples, but the embodiments of the present invention are not limited thereto.

[0021] The components and proportions (parts by weight) of Examples 1-7 are shown in Table 1. Among them, PP is ethylene block copolymerized polypropylene with a melt index of 5.0-25.0g / 10min: the scratch-resistant agent is German Evonik Degus The modified silicone anti-scratch agent of Sai Company and the anti-scratch agent of Ciba Specialty Chemical Company of Switzerland: the rubber content of the elastomer is 40%; the antioxidant is the antioxidant of Ciba Specialty Chemical Company of Switzerland.

[0022] The polypropylene resin, anti-scratch agent, elastomer and antioxidant are weighed according to the proportion, then added to a high-speed mixer and fully mixed, and then the uniformly mixed material is extruded and granulated through a twin-screw extruder. The temperature setting of each section...

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Abstract

The invention relates to a preparation method of a low-temperature-resistant and scratch-resistant automobile zip-fastener sheath special material, wherein the composite material comprises the following components in parts by weight: 65-80 parts of polypropylene; 1-5 parts of a scratch-resistant agent; 10-25 parts of an elastomer; and 0.5-2 parts of an antioxidant. The invention relates to the preparation method of the low-temperature-resistant and scratch-resistant automobile zip-fastener sheath special material. The low-temperature-resistant and scratch-resistant automobile zip-fastener sheath special material not only improves scratch resistance and low temperature resistance of polypropylene, but also has excellent mechanical properties, and besides, does not affect the processing properties of products.

Description

technical field [0001] The invention belongs to the field of polymer materials for automobiles, and relates to a low-temperature-resistant and scratch-resistant special plastic for automobile zipper sheaths and a preparation method thereof. Background technique [0002] At present, with the rapid development of the automobile industry, the lightweight, safety, comfort and environmental protection of automobiles have become the main development trend of the world automobile industry, and the application of plastics and composite materials in automobile materials is becoming more and more extensive. Among the plastic materials used in automobiles, especially because of its low density, high cost performance, and excellent heat resistance, rigidity, chemical corrosion resistance, and easy processing and recycling, polypropylene has become the largest amount of plastics used in automobiles. , the fastest-growing variety, is more popular in the application of plastic materials fo...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L23/12C08L23/16C08L9/06C08L9/02C08L9/00C08L7/00C08L11/00C08L23/08C08L25/08C08L33/08C08K5/5425C08L83/04B29B9/06B29C47/92B29C48/92
Inventor 张楠陈宝岩宫克难
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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